mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-06 04:23:14 +00:00
0a13901f16
fix multiple version map flags
455 lines
13 KiB
Diff
455 lines
13 KiB
Diff
diff --git a/configure.ac b/configure.ac
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index 6e9496d..60b6e4c 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -44,6 +44,8 @@ AC_SUBST([TESTU01_LIBS])
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AM_CONDITIONAL([HAVE_LIBTESTU01],
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[test "x$ac_cv_lib_testu01_unif01_CreateExternGenBits" = "xyes"])
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+AX_CHECK_VSCRIPT
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+
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is_windows=no
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AS_CASE([$host_os],
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[*-gnu*], [
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@@ -68,7 +70,7 @@ AS_CASE([$host_os],
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AM_CONDITIONAL([OS_WINDOWS], [test "x$is_windows" = "xyes"])
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# Checks for header files.
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-AC_CHECK_HEADERS([sys/ndir.h sys/dir.h ndir.h dirent.h grp.h])
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+AC_CHECK_HEADERS([sys/ndir.h sys/dir.h ndir.h dirent.h grp.h nlist.h])
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# Checks for typedefs, structures, and compiler characteristics.
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AC_C_INLINE
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@@ -169,7 +171,8 @@ AC_LINK_IFELSE(
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AC_CHECK_FUNCS([clearenv dirfd fopencookie __fpurge \
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getauxval getentropy getexecname getline \
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- pstat_getproc sysconf])
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+ pstat_getproc sysconf \
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+ strlcpy strlcat strnstr strmode fpurge])
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AM_CONDITIONAL([HAVE_GETENTROPY], [test "x$ac_cv_func_getentropy" = "xtrue"])
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AC_CONFIG_FILES([
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diff --git a/include/bsd/string.h b/include/bsd/string.h
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index f987fee..a1e17ed 100644
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--- a/include/bsd/string.h
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+++ b/include/bsd/string.h
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@@ -41,10 +41,21 @@
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#include <sys/types.h>
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__BEGIN_DECLS
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+#if !HAVE_STRLCPY
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size_t strlcpy(char *dst, const char *src, size_t siz);
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+#endif
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+
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+#if !HAVE_STRLCAT
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size_t strlcat(char *dst, const char *src, size_t siz);
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+#endif
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+
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+#if !HAVE_STRNSTR
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char *strnstr(const char *str, const char *find, size_t str_len);
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+#endif
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+
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+#if !HAVE_STRMODE
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void strmode(mode_t mode, char *str);
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+#endif
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#if !defined(__GLIBC__) || \
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(defined(__GLIBC__) && (!__GLIBC_PREREQ(2, 25) || !defined(_GNU_SOURCE)))
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diff --git a/m4/ax_check_vscript.m4 b/m4/ax_check_vscript.m4
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new file mode 100644
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index 0000000..9851f32
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--- /dev/null
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+++ b/m4/ax_check_vscript.m4
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@@ -0,0 +1,142 @@
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+# ===========================================================================
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+# https://www.gnu.org/software/autoconf-archive/ax_check_vscript.html
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+# ===========================================================================
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+#
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+# SYNOPSIS
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+#
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+# AX_CHECK_VSCRIPT
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+#
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+# DESCRIPTION
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+#
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+# Check whether the linker supports version scripts. Version scripts are
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+# used when building shared libraries to bind symbols to version nodes
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+# (helping to detect incompatibilities) or to limit the visibility of
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+# non-public symbols.
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+#
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+# Output:
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+#
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+# If version scripts are supported, VSCRIPT_LDFLAGS will contain the
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+# appropriate flag to pass to the linker. On GNU systems this would
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+# typically be "-Wl,--version-script", and on Solaris it would typically
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+# be "-Wl,-M".
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+#
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+# Two Automake conditionals are also set:
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+#
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+# HAVE_VSCRIPT is true if the linker supports version scripts with
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+# entries that use simple wildcards, like "local: *".
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+#
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+# HAVE_VSCRIPT_COMPLEX is true if the linker supports version scripts with
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+# pattern matching wildcards, like "global: Java_*".
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+#
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+# On systems that do not support symbol versioning, such as Mac OS X, both
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+# conditionals will be false. They will also be false if the user passes
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+# "--disable-symvers" on the configure command line.
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+#
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+# Example:
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+#
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+# configure.ac:
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+#
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+# AX_CHECK_VSCRIPT
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+#
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+# Makefile.am:
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+#
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+# if HAVE_VSCRIPT
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+# libfoo_la_LDFLAGS += $(VSCRIPT_LDFLAGS),@srcdir@/libfoo.map
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+# endif
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+#
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+# if HAVE_VSCRIPT_COMPLEX
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+# libbar_la_LDFLAGS += $(VSCRIPT_LDFLAGS),@srcdir@/libbar.map
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+# endif
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+#
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+# LICENSE
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+#
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+# Copyright (c) 2014 Kevin Cernekee <cernekee@gmail.com>
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+#
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+# Copying and distribution of this file, with or without modification, are
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+# permitted in any medium without royalty provided the copyright notice
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+# and this notice are preserved. This file is offered as-is, without any
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+# warranty.
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+
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+#serial 2
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+
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+# _AX_CHECK_VSCRIPT(flag, global-sym, action-if-link-succeeds, [junk-file=no])
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+AC_DEFUN([_AX_CHECK_VSCRIPT], [
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+ AC_LANG_PUSH([C])
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+ ax_check_vscript_save_flags="$LDFLAGS"
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+ echo "V1 { global: $2; local: *; };" > conftest.map
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+ AS_IF([test x$4 = xyes], [
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+ echo "{" >> conftest.map
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+ ])
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+ LDFLAGS="$LDFLAGS -Wl,$1,conftest.map"
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+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[int show, hide;]], [])], [$3])
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+ LDFLAGS="$ax_check_vscript_save_flags"
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+ rm -f conftest.map
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+ AC_LANG_POP([C])
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+]) dnl _AX_CHECK_VSCRIPT
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+
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+AC_DEFUN([AX_CHECK_VSCRIPT], [
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+
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+ AC_ARG_ENABLE([symvers],
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+ AS_HELP_STRING([--disable-symvers],
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+ [disable library symbol versioning [default=auto]]),
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+ [want_symvers=$enableval],
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+ [want_symvers=yes]
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+ )
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+
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+ AS_IF([test x$want_symvers = xyes], [
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+
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+ dnl First test --version-script and -M with a simple wildcard.
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+
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+ AC_CACHE_CHECK([linker version script flag], ax_cv_check_vscript_flag, [
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+ ax_cv_check_vscript_flag=unsupported
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+ _AX_CHECK_VSCRIPT([--version-script], [show], [
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+ ax_cv_check_vscript_flag=--version-script
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+ ])
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+ AS_IF([test x$ax_cv_check_vscript_flag = xunsupported], [
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+ _AX_CHECK_VSCRIPT([-M], [show], [ax_cv_check_vscript_flag=-M])
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+ ])
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+
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+ dnl The linker may interpret -M (no argument) as "produce a load map."
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+ dnl If "-M conftest.map" doesn't fail when conftest.map contains
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+ dnl obvious syntax errors, assume this is the case.
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+
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+ AS_IF([test x$ax_cv_check_vscript_flag != xunsupported], [
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+ _AX_CHECK_VSCRIPT([$ax_cv_check_vscript_flag], [show],
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+ [ax_cv_check_vscript_flag=unsupported], [yes])
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+ ])
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+ ])
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+
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+ dnl If the simple wildcard worked, retest with a complex wildcard.
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+
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+ AS_IF([test x$ax_cv_check_vscript_flag != xunsupported], [
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+ ax_check_vscript_flag=$ax_cv_check_vscript_flag
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+ AC_CACHE_CHECK([if version scripts can use complex wildcards],
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+ ax_cv_check_vscript_complex_wildcards, [
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+ ax_cv_check_vscript_complex_wildcards=no
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+ _AX_CHECK_VSCRIPT([$ax_cv_check_vscript_flag], [sh*], [
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+ ax_cv_check_vscript_complex_wildcards=yes])
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+ ])
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+ ax_check_vscript_complex_wildcards="$ax_cv_check_vscript_complex_wildcards"
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+ ], [
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+ ax_check_vscript_flag=
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+ ax_check_vscript_complex_wildcards=no
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+ ])
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+ ], [
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+ AC_MSG_CHECKING([linker version script flag])
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+ AC_MSG_RESULT([disabled])
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+
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+ ax_check_vscript_flag=
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+ ax_check_vscript_complex_wildcards=no
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+ ])
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+
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+ AS_IF([test x$ax_check_vscript_flag != x], [
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+ VSCRIPT_LDFLAGS="-Wl,$ax_check_vscript_flag"
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+ AC_SUBST([VSCRIPT_LDFLAGS])
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+ ])
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+
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+ AM_CONDITIONAL([HAVE_VSCRIPT],
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+ [test x$ax_check_vscript_flag != x])
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+ AM_CONDITIONAL([HAVE_VSCRIPT_COMPLEX],
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+ [test x$ax_check_vscript_complex_wildcards = xyes])
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+
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+]) dnl AX_CHECK_VSCRIPT
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diff --git a/src/Makefile.am b/src/Makefile.am
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index 8384b92..e2c8e15 100644
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--- a/src/Makefile.am
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+++ b/src/Makefile.am
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@@ -65,8 +65,11 @@ libbsd_la_LIBADD = \
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$(ARC4RANDOM_ATFORK_LIBS) \
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$(nil)
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libbsd_la_LDFLAGS = \
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- -Wl,--version-script=$(srcdir)/libbsd.map \
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-version-number $(LIBBSD_ABI)
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+if HAVE_VSCRIPT
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+libbsd_la_LDFLAGS += $(VSCRIPT_LDFLAGS),@srcdir@/libbsd.map
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+endif
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+
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libbsd_la_SOURCES = \
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arc4random.c \
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arc4random.h \
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diff --git a/src/fpurge.c b/src/fpurge.c
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index 462535a..a8941db 100644
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--- a/src/fpurge.c
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+++ b/src/fpurge.c
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@@ -26,9 +26,10 @@
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#include <errno.h>
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#include <stdio.h>
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-#include <stdio_ext.h>
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#ifdef HAVE___FPURGE
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+#include <stdio_ext.h>
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+
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int
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fpurge(FILE *fp)
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{
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@@ -41,6 +42,36 @@ fpurge(FILE *fp)
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return 0;
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}
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+/* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin 1.7 */
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+#elif HAVE_FPURGE
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+int
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+fpurge(FILE *fp)
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+{
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+ if (fp == NULL || fileno(fp) < 0) {
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+ errno = EBADF;
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+ return EOF;
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+ }
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+
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+ /* Call the system's fpurge function. */
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+#undef fpurge
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+#if !HAVE_DECL_FPURGE
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+ extern int fpurge (FILE *);
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+#endif
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+ int result = fpurge (fp);
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+/* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
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+#if defined(__sferror) || defined(__DragonFly__)
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+ if (result == 0)
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+ /* Correct the invariants that fpurge broke.
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+ <stdio.h> on BSD systems says:
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+ "The following always hold: if _flags & __SRD, _w is 0."
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+ If this invariant is not fulfilled and the stream is read-write but
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+ currently reading, subsequent putc or fputc calls will write directly
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+ into the buffer, although they shouldn't be allowed to. */
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+ if ((fp->_flags & __SRD) != 0)
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+ fp->_w = 0;
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+#endif
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+ return result;
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+}
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#else
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#error "Function fpurge() needs to be ported."
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#endif
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diff --git a/src/funopen.c b/src/funopen.c
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index 1e05c7e..65ba5a8 100644
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--- a/src/funopen.c
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+++ b/src/funopen.c
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@@ -143,6 +143,7 @@ funopen(const void *cookie,
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* they will not add the needed support to implement it. Just ignore this
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* interface there, as it has never been provided anyway.
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*/
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+#elif defined(__MACH__)
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#else
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#error "Function funopen() needs to be ported or disabled."
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#endif
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diff --git a/src/hash/sha512.h b/src/hash/sha512.h
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index 4f368a1..7632e25 100644
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--- a/src/hash/sha512.h
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+++ b/src/hash/sha512.h
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@@ -29,7 +29,11 @@
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#ifndef _SHA512_H_
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#define _SHA512_H_
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+#ifdef __MACH__
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+#include <stdint.h>
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+#else
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#include <sys/types.h>
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+#endif
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#define SHA512_DIGEST_LENGTH 64
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diff --git a/src/hash/sha512c.c b/src/hash/sha512c.c
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index b3c8d5e..602f54e 100644
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--- a/src/hash/sha512c.c
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+++ b/src/hash/sha512c.c
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@@ -25,7 +25,12 @@
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*/
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#include <sys/cdefs.h>
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+
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+#ifdef __MACH__
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+#include <machine/endian.h>
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+#else
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#include <sys/endian.h>
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+#endif
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#include <sys/types.h>
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#include <string.h>
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diff --git a/src/local-link.h b/src/local-link.h
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index 0d4351a..fc520af 100644
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--- a/src/local-link.h
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+++ b/src/local-link.h
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@@ -27,6 +27,11 @@
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#ifndef LIBBSD_LOCAL_LINK_H
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#define LIBBSD_LOCAL_LINK_H
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+#ifdef __MACH__
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+#define libbsd_link_warning(symbol, msg)
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+#define libbsd_symver_default(alias, symbol, version)
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+#define libbsd_symver_variant(alias, symbol, version)
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+#else
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#define libbsd_link_warning(symbol, msg) \
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static const char libbsd_emit_link_warning_##symbol[] \
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__attribute__((__used__,__section__(".gnu.warning." #symbol))) = msg;
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@@ -45,3 +50,4 @@
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#endif
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#endif
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+#endif
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diff --git a/src/nlist.c b/src/nlist.c
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index 228c220..46c2d77 100644
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--- a/src/nlist.c
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+++ b/src/nlist.c
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@@ -41,6 +41,7 @@
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#include <unistd.h>
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#include <nlist.h>
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+#if !HAVE_NLIST_H
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#include "local-elf.h"
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#define SIZE_T_MAX 0xffffffffU
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@@ -280,3 +281,4 @@ nlist(const char *name, struct nlist *list)
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(void)close(fd);
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return (n);
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}
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+#endif
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diff --git a/src/readpassphrase.c b/src/readpassphrase.c
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index f9f6195..2bc5fb4 100644
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--- a/src/readpassphrase.c
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+++ b/src/readpassphrase.c
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@@ -36,6 +36,14 @@
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#define TCSASOFT 0
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#endif
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+#ifndef _SIGMAX
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+#define _SIGMAX 64
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+#endif
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+
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+#ifndef _NSIG
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+#define _NSIG (_SIGMAX + 1)
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+#endif
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+
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static volatile sig_atomic_t signo[_NSIG];
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static void handler(int);
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diff --git a/src/setproctitle.c b/src/setproctitle.c
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index ff32aa3..51ed833 100644
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--- a/src/setproctitle.c
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+++ b/src/setproctitle.c
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@@ -33,6 +33,10 @@
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#include <string.h>
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#include "local-link.h"
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+#ifdef __MACH__
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+extern char **environ;
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+#endif
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+
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static struct {
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/* Original value. */
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const char *arg0;
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@@ -287,7 +291,8 @@ libbsd_symver_default(setproctitle, setproctitle_impl, LIBBSD_0.5);
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* in 0.5, make the implementation available in the old version as an alias
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* for code linking against that version, and change the default to use the
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* new version, so that new code depends on the implemented version. */
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-#ifdef HAVE_TYPEOF
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+#ifdef __MACH__
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+#elif defined(HAVE_TYPEOF)
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extern __typeof__(setproctitle_impl)
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setproctitle_stub
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__attribute__((__alias__("setproctitle_impl")));
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diff --git a/src/strlcat.c b/src/strlcat.c
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index 14c53a1..5961c17 100644
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--- a/src/strlcat.c
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+++ b/src/strlcat.c
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@@ -26,6 +26,7 @@
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* Returns strlen(src) + MIN(dsize, strlen(initial dst)).
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* If retval >= dsize, truncation occurred.
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*/
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+#if !HAVE_STRLCAT
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size_t
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strlcat(char *dst, const char *src, size_t dsize)
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{
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@@ -53,3 +54,4 @@ strlcat(char *dst, const char *src, size_t dsize)
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return(dlen + (src - osrc)); /* count does not include NUL */
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}
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+#endif
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diff --git a/src/strlcpy.c b/src/strlcpy.c
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index e9a7fe4..5137acb 100644
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--- a/src/strlcpy.c
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+++ b/src/strlcpy.c
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@@ -24,6 +24,7 @@
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* chars will be copied. Always NUL terminates (unless dsize == 0).
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* Returns strlen(src); if retval >= dsize, truncation occurred.
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*/
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+#if !HAVE_STRLCPY
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size_t
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strlcpy(char *dst, const char *src, size_t dsize)
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{
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@@ -48,3 +49,4 @@ strlcpy(char *dst, const char *src, size_t dsize)
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return(src - osrc - 1); /* count does not include NUL */
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}
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+#endif
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diff --git a/src/strmode.c b/src/strmode.c
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index e6afde5..da680c9 100644
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--- a/src/strmode.c
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+++ b/src/strmode.c
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@@ -32,6 +32,7 @@
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#include <sys/stat.h>
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#include <string.h>
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|
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+#if !HAVE_STRMODE
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void
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strmode(mode_t mode, char *p)
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{
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@@ -141,3 +142,4 @@ strmode(mode_t mode, char *p)
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*p++ = ' '; /* will be a '+' if ACL's implemented */
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*p = '\0';
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}
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+#endif
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